@langchain/core/dist/language_models/utils.js

Core LangChain.js abstractions and schemas

// src/language_models/utils.ts
const iife = (fn) => fn();
function castStandardMessageContent(message) {
	const Cls = message.constructor;
	return new Cls({
		...message,
		content: message.contentBlocks,
		response_metadata: {
			...message.response_metadata,
			output_version: "v1"
		}
	});
}
export { castStandardMessageContent, iife };

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